Data Organized by David Lublin, dlublin@aol.com or dlublin@american.edu.
README.txt is a file that describes what it is contained in CD.csv.  The data is in comma separated format.  Missing data is usually coded as a period.  I used this data extensively in analyzing the data in "The Paradox of Representation."  The data set contains data on U.S. House districts for the 87th-104th Congresses (i.e. the members of the House elected from 1962-1994).
The following lists the data contained in each column:
     1.   State Number.  The states are numbered in alphabetical order.
     2.   Congressional District Number.
     3.   Population.
     4.   Land Area (square miles).
     5.   Number of Urban Residents.
     6.   Number of Rural Farm Residents.
     7.   Number of Whites.
     8.   Number of Blacks.
     9.   Number of Hispanics.
     10.  Number Foreign Born.
     11.  Number 65 Years or Older.
     12.  Number 18 or Older.
     13.  Median Age.
     14.  Number Hispanic 18 or Older.
     15.  Number 5 and Older.
     16.  Number Resident in Same House as 5 Years Before Census Year.
     17.  Number Resident in Different House but Same State as 5 Years Before Census Year.
     18.  Number Resident in Different State than 5 Years Before Census Year.
     19.  Number 25 or Older.
     20.  Percent 25 or Older who have Completed 4 Years of High School or More.
     21.  Percent 25 or Older who have Completed 4 Years of College or More.
     22.  Median Family Income.
     23.  Size of Total Labor Force.
     24.  Number of Local Government Workers.
     25.  Number of State Government Workers.
     26.  Number of Federal Government Workers
     27.  Total Number of Government Workers.
     28.  Number Black 65 or Older.
     29.  Number Black 18 or Older.
     30.  Number Black 25 or Older.
     31.  Percent of Blacks 25 or Older who have Completed 4 Years of High School or More.
     32.  Percent of Blacks 25 or Older who have Completed 4 Years of College or More.
     33.  Number White 25 or Older.
     34.  Percent of Whites 25 or Older who have Completed 4 Years of High School or More.
     35.  Percent of Whites 25 or Older who have Completed 4 Years of College or More.
     36.  White Median Family Income
     37.  Black Median Family Income
     38.  Percent Born in State of Residence.
     39.  Congress Number.
     40.  ICPSR State Code.
     41.  Party Code (100 = Democrat, 200 = Republican).
     42.  Poole-Rosenthal Score Dimension 1
     43.  Poole-Rosenthal Score Dimension 2
     44.  Special Election (0 = Regular, 1 = Special, 2 = Other).
     45.  Repeated District (1 = Second Appearance of District in Data set for that Congress).
     46.  Black Representative (1 = Black, 0 = Other).
     47.  Latino Representative (1 = Mexican, 2 = Puerto Rican, 3 = Cuban, 0 = Other).
     48.  Women Representative (1 = Woman, 0 = Man).
     49.  Year (last three digits so 1976 is coded as 976).
     50.  Democratic Proportion of Major-Party Vote.
     51.  Incumbency (0 = Republican, 1 = Democrat, 2 = Open).
     52.  Number of Votes for Democrat.
     53.  Number of Votes for Republican.
     54.  First Congress of All Service.
     55.  First Congress of Continuous Service.
     56.  First Year Elected to House (last three digits so 1976 is coded as 976).
     57.  Total Length of Service (in years).
     58.  ADA (American for Democratic Action) Rating (0-100).
     59.  COPE (AFL-CIO's Committee on Political Education) Rating (0-100).
     60.  LCCR (Leadership Conference on Civil Rights) Rating (0-100).
     61.  Female Democratic Nominee (1 = Female, 0 = Male, 2 = No Nominee, 3 = Don't Know).
     62.  Male Democratic Nominee (1 = Female, 0 = Male, 2 = No Nominee, 3 = Don't Know).
     63.  Male Voting-Age Population.
     64.  Female Voting-Age Population.